Fig. 1From: Serum retinol binding protein 4 is negatively related to estrogen in Chinese women with obesity: a cross-sectional studyPearson’s correlation analysis between RBP4 ((μg/ml)) and E2(pmol/L). Serum RBP4 level was negatively correlated with estrogen in obese individuals (r = −0.374, p = 0.032, a However, the association between RBP4 and estrogen no longer existed when in non-obese individuals (r = −0.01, p = 0.962, b)Back to article page